Mid-infrared supercontinuum generation in concatenated fluoride and chalcogenide glass fibers covering more than three octaves

Supercontinuum is generated in concatenated ZBLAN and As
2
Se
3
fibers. Initially, a 0.9–4.1mm supercontinuum is obtained by pumping the ZBLAN fiber with a Tm laser, which then continues to broaden to 0.9–9um in As
2
Se
3
fiber.